{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "DNA", "cell line", "RNA", "cell type"], "input": "These observations imply that TCF-1 is involved in the control of several T cell-specific genes and might thus play an important role in the establishment and maintenance of the mature T cell phenotype ."}
{"protein": ["TCF-1"], "DNA": ["T cell-specific genes"], "cell line": [], "RNA": [], "cell type": ["mature T cell phenotype"]}